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11857007 = 171936709
BaseRepresentation
bin101101001110…
…110001101111
3211022101202102
4231032301233
511013411012
61102045315
7202532351
oct55166157
924271672
1011857007
116769388
123b7983b
1325c1ba6
1418090d1
1510932c2
hexb4ec6f

11857007 has 8 divisors (see below), whose sum is σ = 13215600. Its totient is φ = 10571904.

The previous prime is 11857003. The next prime is 11857033. The reversal of 11857007 is 70075811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11857007 - 22 = 11857003 is a prime.

It is a super-2 number, since 2×118570072 = 281177229996098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11857003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18032 + ... + 18677.

It is an arithmetic number, because the mean of its divisors is an integer number (1651950).

Almost surely, 211857007 is an apocalyptic number.

11857007 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

11857007 is a deficient number, since it is larger than the sum of its proper divisors (1358593).

11857007 is a wasteful number, since it uses less digits than its factorization.

11857007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36745.

The product of its (nonzero) digits is 1960, while the sum is 29.

The square root of 11857007 is about 3443.4004995063. The cubic root of 11857007 is about 228.0298450210.

It can be divided in two parts, 1185 and 7007, that added together give a 13-th power (8192 = 213).

The spelling of 11857007 in words is "eleven million, eight hundred fifty-seven thousand, seven".

Divisors: 1 17 19 323 36709 624053 697471 11857007